stockstrom



(No Model.)

L. STOGKSTROM. GAS STOVE BURNER.

N0. 508,354.= w Patented Nov. 7, 1893.

ms NATIONAL LrmocRAPume CQMFANY.

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- UNITED STATES PATENT OFFICE.

LOUIS STOOKSTROM, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO CHARLES A. STOOKSTROM, OF SAME PLACE.

GAS-STOVE BURNER.

SPECIFICATION forming part of Letters Patent No. 508,354, dated November 7, 1893.

Application filed May- 17, 1392. fierial No. 433,328- (No model.) i

T at whom it may concern:

Be it known that I, LOUIS STOCKSTROM, of

- the city of St. Louis,in the State of Missouri,

have invented a certain new and useful Improvement in Gas-Stove Burners, of which the following is a full, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification. The chief novelty in this inventionconsists in the construction of the burner proper. This and other details of novelty will be set forth in the claims. l

Figure I is a topview of the device. Fig. II is an enlarged longitudinal section of a burner taken at IIII, Fig. I, Fig. III is a horizontal section taken at III'III, Fig. II. Fig. IV is an enlarged section taken at IV IV,

Fig. I.

1 is the main supply pipe by which the gas is supplied to oneor more burners.

2 is a jet pipe passing diametrically through the pipe 1 and tightly screwed therein.

3 are radial holes leading from the pipe 1. to the interior of the jet pipe.

4 is the valve seat and 5 the jet hole.

The valve has the usual conical form with a screw threaded stem working in the screw socket 6. The valve stem 7 passes through a stuffing-box 8, and carries a usual hand wheel 9. The jet-pipe is screwed into the center of the end or head 10 of the mixing chamber 11. The head has air openings 12 that may be partly or wholly closed by a damper or register plate or disk 13 that turns on the jet pipe as a center and ,liesflat upon thehead 10. The register plate has orifices 14 that may be brought in line, more or less, to regulate the quantity of air entering the mixing chamber.

15 are rounded marginal projections of the damper by which it is readily turned.

13 is a spiral spring pressing the. damper against the head 10. The casting 16 forming the outer part of the mixing chamber may be connected to the burner casting-by a short section 17 of pipe, the pipe being screwed into both castings. The burner proper is cast and has an annular chamber 18 between the two concentric walls 19 and 20 and their bottom and top conneotions'21 and 22.

23 is a screw plug stopping the hole in the outer wall 19 opposite to the induction passage 24 of the burner. This hole gives access to the annular chamber 18.

The top'22is'made with a narrow circular slot or slit 25 for the escape of the combustible vapor. This slit is out by a tool insuring perfect uniformity and smoothness. In order to hold the upper edges of the slits25 in perfect relative position the walls 19, 20 are connected just below the slit by radial bars 26, cast in one piece with the burner. In order always remain the same size and not be changed by expansion or contraction or warping of the burner casting, and for this purpose the bars 26 are provided.

The exterior or interior form or shape of the burner is such that very beneficial results are attained. In the first place the exterior walls 19 and 20 taper upwardly, both converging toward the slot 25. The bottom 21 of the burner is rounded offering no obstruction to the upward passage of air currents on either side 19 and 20 of the burner. The result of this exterior formation of the'burner is that currents of air pass upwardly along the walls 19 and 20,0f the burner and they leave the top of the burner on converging lines, those leaving the wall 19 crossing those leaving the wall 20, directly over and very close to the slot 25, thus effecting a thorough and constant commingling of air with the gas issuing through the slot 25, and this thorough commingling is not interrupted by broken or irregular air currents as would be thecase were the bottom and exterior walls of the burner formed with rectangular or square surfaces. In 'the second place, the interior walls, or the walls of the chamber 18, taper upwardly, converging toward the slot 25, offering little resistance or friction to the passage of gas through the burner. The chamber 18 being quite large, and widest at bottom, a large and constantly rising volume of gas is maintained,

and a uniform sheet of gas will constantly flow through the slot 25.

to give the best results the slot 25should By practical demonstration, these burners have been found to possess great merit. I claim as new and of my invention- 1. Agas stove burner cast in one piece com:

prising the annular outer wall 19, the 'inner annular wall 20, the annular bottom 21 from walls, the bottom, and the top providing an upwardly tapering rounded chamber 18; substantially as described.

3. In a gas burner, the combination of the burner a supply pipe, a jet pipe passing through the supply pipe and having perforations' within the supply pipe, anda valve in said jet pipe, said burner being secured to said jet pipe, substantially as set forth.

LOUIS STOOKSTROM.

In presence of ALBERT M. EBERsoLE, E. S. KNIGHT. 

